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Joe,
If you are asking if you can tune your system with a Digital Volt Meter, the answer is yes you can. You will also need a CD with a number of sine wave frequencies (as most Class D dedicated sub amplifiers have a limited HF bandwidth), plus a distortion analyzer or an ocilliscope. You will want to avoid pumping a 1kHz sine wave through a coaxial at full power (very different from dynamic music power) so you will find clipping without the speakers connected. But this exercise only establishes the maximum gain at which any amplifier can be safely set to. For gain balancing between between area speakers and highpass to lowpass speakers, you will have to finish the old fashion way by ear.

[QUOTE=jmvotto;197727]I have an old technics eq for home that has a pink noise generator with mic I could use right?

Joe
Yes and No.
While pink noise, mic and display are certainly useful in recognizing phase problems and taking a look at your response curve, you would really need a one/third octave RTA (approaching 30 increments) in order to be accurate. Otherwise many problems won't even show up. We use a 1/24th octave RTA and a high quality calibrated measurement mic.
Pink noise, an RTA and mic aren't going to work for finding your maximum unclipped power for each amplifier.
This requires a DVM, O-scope and sine wave source.
Your EQ/RTA can be useful afterwards.